CVE-2026-82270

Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/*

Published: Aug 28, 2026Updated: Aug 31, 2026 Sources: CVE List NVDCWE-918

7.5HIGH

Description

Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/* route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal services and exfiltrate provider API keys.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-918

Affected Products

Portkey-AI

commercial

gatewaySaaS

Cloud & SaaS / api-gateway

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://github.com/Portkey-AI/gateway/issues/1718

github.com

https://github.com/Portkey-AI/gateway

github.com

https://github.com/Portkey-AI/gateway/blob/669825cbe89ee51569918b8f78a9db486fd69dd4/src/index.ts

github.com

and 1 more references View all →

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